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Finding the Fourth Proportional to 130,280.59, 195,360.74 and 55,360.80

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Solution

The fourth proportional to 130,280.59, 195,360.74 and 55,360.80 is: 83,015.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,280.59 : 195,360.74 = 55,360.80 : x
  2. Step 2: Convert to fraction form
    130,280.59/195,360.74 = 55,360.80/x
  3. Step 3: Cross multiply
    130,280.59x = 195,360.74 × 55,360.80
  4. Step 4: Simplify right side
    130,280.59x = 10,815,326,854.99
  5. Step 5: Solve for x
    x = 10,815,326,854.99/130,280.59
  6. Step 6: Final answer
    x = 83,015.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.